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Cathodic Protection

Cathodic Protection is protection of metal from corrosion through the use of a cathode or anode. Metal pipe is subject to corrosion so steps need to be taken to prevent or reduce the corrosion by attaching a sacrificial anode made of a metal which is more easily corroded such as zinc or alumunium. Also a function of zinc coatings on iron and steel drainage products - galvanic action.